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Abstract

A fluid pump device for use in conjunction with a tubular pumping chamber which is composed of an elastic material and which has a pair of spaced-apart unidirectional valves through which fluid can be passed with cyclic compression and expansion of the chamber. The pump device is intended for medical or veterinary applications and it comprises spaced-apart clamp elements between which the pumping chamber can be removably located, an electrically actuated solenoid device for effecting cyclic relative movement of the clamp elements whereby cyclic changes in the contained volume of the pumping chamber are induced when the chamber is located between the clamp elements, and electrical circuitry associated with the solenoid for energizing the solenoid at a selectable repetition rate.

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First Claim